3
Scope
This manual provides installation and operation information for the
CONCOA Gas Mizer.
Use
The Mizer is an accessory for inside bench production and assembly line
gas welding and heating operations. It is designed for use in the oxygen
and fuel gas supply, low pressure line of a hand welding torch. When a
hand torch is hung on the Mizer’s hanger rod, oxygen and fuel gas are shut
off.
Pilot light burner tips are not included with the Mizer, but are required
for an installation. Order them separately for MAPP
®
gas, propane, acety-
lene, or natural gas.
Description
The inlet side of the Gas Mizer is equipped with a fuel gas pilot light. The
inlet and outlet nipples are B size, RH for oxygen and LH for fuel gas. The
Mizer’s shut off valves can be individually adjusted by their seat adjust-
ment screws. This seat adjustment controls ignition by: LEAD for ON
and LAG for OFF.
SAFTEY
Install pressure regulators on cylinders (or pipline branch). Comply with
CONCOA manual
Safe Practices in Welding & Cutting
, ADE 872, and
torch and regulator instruction manuals
a. Secure the Gas Mizer on a bench or other horizontal surface, using
four mounting holes. Position the Mizer so that when the torch is
hung on the hanger, torch tip will point away from operator and
in a safe direction.
b. Connect the fuel gas hose to the inlet marked FUEL GAS and the
oxygen hose to the other inlet. Refer to the above table for hose
andfitting accessories. Turn off pilot light adjusting valve (clock-
wise).
c. Connect torch hoses to respective Mizer outlets.
d. Screw pilot light burner (for fuel gas to be used) into Mizer needle
valve securely so that is does not leak.
INSTALLATION
INTRODUCTION
6
IMPORTANT
Hoses for use with acetylene only - Grades R and RM . Hoses for use with
fuel gases (including acetylene) - Grade T.
NOTE
CGA G-1 5.3.3.13 To minimize the withdrawal of liquid solvent, acetylene
should be withdrawn from the cylinder at a rate not to exceed 1/10 (one-
tenth) of the capacity of the cylinder per hour during intermittent use. For
full withdrawal of the contents of the cylinder on a continous basis, the flow
rate should be no more than 1/15 (one-fifteenth) of the capacity of the cylin-
der per hour.
NOTE
Check valves prevent the reverse flow of mixed gases. Regulator Check Valves
“B” size 830 4199 Oxygen, 830 4200 Fuel. Torch Check Valves “B” size 831
4146 Oxygen, 831 4138 Fuel.
IMPORTANT
For Maximum Safety Use Flashback Arrestors
Regulator Mounted
Regulator Mounted
Torch Mounted
Model -78 Resettable
Model 65
Model 460
801 0786 “B” Size (Oxy.) 801 0536 “B” Size (Oxy.) 801 1466 “B” Size (Oxy.)
801 0789 “B” Size (Fuel) 801 0539 “B” Size (Fuel) 801 1469 “B” Size (Fuel)
UL Listed --- Meets OSHA Requirements --- Comply with ISO 5175